Are all humans asianoid negroiod or caucasianiod?

Humans are classified into various ethnic and racial groups, but these categories are not strictly limited to "Asianoid," "Negroid," or "Caucasoid." Modern understanding of human diversity recognizes a continuum of genetic variation and the influence of geography, culture, and history. Consequently, racial classifications are seen as social constructs rather than strict biological categories, and many people may exhibit traits from multiple groups.